The Self-induced Unsteadiness of Tip Leakage Flow in an Axial Low-Speed Compressor with Single Circumferential Casing Groove
文献类型：期刊论文
| 作者 | Du Juan1,2; Li Jichao1,2; Wang Kai1,2; Lin Feng1,2; Nie Chaoqun1,2 |
| 刊名 | JOURNAL OF THERMAL SCIENCE
 |
| 出版日期 | 2013-12-01 |
| 卷号 | 22期号:6页码:565-572 |
| 关键词 | Tip leakage flow unsteadiness circumferential groove stall margin improvement |
| 英文摘要 | Numerical investigation on the self-induced unsteadiness of tip leakage flow (TLF) for an axial low-speed compressor with smooth wall and six single grooved casings are presented. A ten-passage numerical scheme is used to solve the unsteady Reynolds averaged Navier-Stokes (URANS) equations. It is found that the single grooves at various axial locations could have a large impact on the self-induced unsteadiness and the stall margin improvement (SMI) of compressor. The trend of SMI with groove center location demonstrates that the groove located near the mid of blade tip chord generates the best SMI. The worst groove is located about 20% Cax after the blade leading edge. The root-mean-squre of static pressure (RMSP) contours at 99.5% span and fast Fourier transform for the static pressure traces recorded in the tip clearance region for each casing are analyzed. The results demonstrate that the single groove location not only affects the oscillating strength but also the frequency of the unsteady tip leakage flow. At the near-stall point of smooth casing, the self-induced unsteadiness of TLF is enhanced most by the best grooved casing for SMI. While, the self-induced unsteadiness disappears when the worst groove for SMI is added. The characteristic frequency of TLF is about 0.55 blade passing frequency (BPF) with smooth casing. The frequency components become complicated as the single groove moves from the leading edge to the trailing edge of the blade. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Thermodynamics ; Engineering, Mechanical |
| 研究领域[WOS] | Thermodynamics ; Engineering |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000327190800008 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/98841]  |
| 专题 | 工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI） |
| 作者单位 | 1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Key Lab Adv Energy & Power, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du Juan,Li Jichao,Wang Kai,et al. The Self-induced Unsteadiness of Tip Leakage Flow in an Axial Low-Speed Compressor with Single Circumferential Casing Groove[J]. JOURNAL OF THERMAL SCIENCE,2013,22(6):565-572. |
| APA | Du Juan,Li Jichao,Wang Kai,Lin Feng,&Nie Chaoqun.(2013).The Self-induced Unsteadiness of Tip Leakage Flow in an Axial Low-Speed Compressor with Single Circumferential Casing Groove.JOURNAL OF THERMAL SCIENCE,22(6),565-572. |
| MLA | Du Juan,et al."The Self-induced Unsteadiness of Tip Leakage Flow in an Axial Low-Speed Compressor with Single Circumferential Casing Groove".JOURNAL OF THERMAL SCIENCE 22.6(2013):565-572. |
入库方式： OAI收割
来源：工程热物理研究所
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